Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of high-strength nylon

A high-strength, nylon technology, applied in the field of high-strength nylon preparation, can solve the problems of internal stress deformation, insufficient nylon strength, etc., to achieve the effect of increasing strength, increasing temperature, and slowing down injection speed

Inactive Publication Date: 2020-11-20
中平神马江苏新材料科技有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the problems of insufficient nylon strength in the prior art and easy generation of internal stress deformation during processing, the invention provides a method for preparing high-strength nylon

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of high-strength nylon
  • Preparation method of high-strength nylon
  • Preparation method of high-strength nylon

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0030] The invention discloses a preparation method of high-strength nylon, comprising the following steps:

[0031] Step 1: Pack the polyamide-6 in a vacuum bag. When in use, put the polyamide-6 into the dryer and dry it at a high temperature of 200-300°C. After drying, filter the impurities in the polyamide-6 with a nylon filter. ;

[0032] Step 2: Heat the resin at 200°C, mix it with polyamide-6 after heating, let it stand for 20 minutes, add carbon fiber and stir for 30-40 minutes;

[0033] Step 3: Add antioxidants to the above mixture, stir and let stand, add flame retardant, stir for 20-30 minutes, let stand for 30 minutes, add additives and stir;

[0034] Step 4: Ensure that the processing temperature is maintained at 300-320°C, add carbon black, stir for 25-30 minutes and then let stand;

[0035] Step 5: During injection molding, prolong the injection molding time, the injection speed is 50-60 cubic centimeters per second, add a catalyst during injection molding, and...

Embodiment 1

[0049]A preparation method of high-strength nylon, comprising the following steps:

[0050] Step 1: Pack 45% polyamide-6 in a vacuum bag. When in use, add polyamide-6 to a dryer and dry at a high temperature of 200°C. After drying, filter the impurities in polyamide-6 with a nylon filter ;

[0051] Step 2: Heat 10% polyethylene or polyoxymethylene at 200°C, mix with polyamide-6 after heating, add 2% carbon fiber and stir for 30 minutes after standing for 20 minutes;

[0052] Step 3: Add 5% anti-oxidant pentaerythritol dioctadecyl diphosphite or distearyl pentaerythritol diphosphite to the above mixture, add 10% phosphorus flame retardant after stirring and let it stand for 20 minutes For 30 minutes, according to the ratio of 1:1:1:1, add toughening agent, release agent, ultraviolet absorber and heat stabilizer in turn and stir. The toughening agent is polypropylene, and the ultraviolet absorber is phenyl o-hydroxybenzoate. , the mold release agent adopts zinc stearate, and t...

Embodiment 2

[0056] A preparation method of high-strength nylon, comprising the following steps:

[0057] Step 1: Pack 55% polyamide-6 in a vacuum bag. When in use, add polyamide-6 to a dryer and dry at a high temperature of 250°C. After drying, filter the impurities in polyamide-6 with a nylon filter ;

[0058] Step 2: Heat 15% polyethylene or polyoxymethylene at 200°C, mix with polyamide-6 after heating, add 2% to 6% carbon fiber after standing for 20 minutes and stir for 35 minutes;

[0059] Step 3: Add 6% antioxidant pentaerythritol dioctadecyl diphosphite or distearyl pentaerythritol diphosphite to the above mixture, add 12.5% ​​phosphorus flame retardant after stirring for 25 minutes and let stand For 30 minutes, according to the ratio of 1:1:1:1, add toughening agent, release agent, ultraviolet absorber and heat stabilizer in turn and stir. The toughening agent is polypropylene, and the ultraviolet absorber is phenyl o-hydroxybenzoate. , the mold release agent adopts zinc stearate...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a preparation method of high-strength nylon. The preparation method comprises the steps: 1, polyamide-6 is packaged through a vacuum bag, during using, the polyamide-6 is addedinto a drying machine to be dried at a high temperature of 200 to 300 DEG C, and after drying is completed, impurities in the polyamide-6 are filtered through a nylon filter net; 2, resin is heated at200 DEG C, after heating, the resin is mixed with the polyamide-6, and after still standing for 20 min, carbon fibers are added for stirring for 30 to 40 min; 3, an antioxidant is added into a mixture, after stirring and still standing, a fire retardant is added, after stirring for 20 to 30 min, still standing is conducted for 30 min, and an assistant is added for stirring; 4, it is ensured thatthe processing temperature is maintained at 300 to 320 DEG C, carbon black is added, and after stirring for 25 to 30 min, still standing is conducted; and 5, during injection molding, the injection molding duration is prolonged, the injection speed is 50 to 60 cm3 / s, a catalyst is added during injection molding, and during extrusion, the temperature of an extruding outlet is controlled to be 260 to 300 DEG C.

Description

technical field [0001] The invention relates to the technical field of nylon processing and production, in particular to a preparation method of high-strength nylon. Background technique [0002] Polyamide is commonly known as nylon (Nylon), English name Polyamide (referred to as PA), density 1.15g / cm, is the general term for thermoplastic resins containing repeated amide groups -[NHCO]- on the main chain of the molecule, including aliphatic PA, aliphatic-aromatic Group PA and aromatic PA. Among them, aliphatic PA has many varieties, large output and wide application, and its naming depends on the specific number of carbon atoms in the synthetic monomer. Invented by the famous American chemist Carothers and his research team. [0003] Nylon is a term for polyamide fiber (nylon), which can be made into long or short fibers. Nylon is the trade name of polyamide fiber, also known as nylon (Nylon). The English name is Polyamide (referred to as PA), and its basic constituents...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B29C71/00B29C71/02B29C45/76B29C45/78B29B13/10B29B13/06B29B7/00C08L77/02C08L23/06C08L59/00C08K13/04C08K7/06C08K3/04C08K5/098
CPCB29C71/0009B29C71/02B29C45/76B29C45/78B29B13/10B29B13/065B29B7/002C08L77/02B29C2945/76531B29C2071/022C08L23/06C08K13/04C08K7/06C08K3/04C08K5/098C08L59/00
Inventor 任永德程伟涛孙斌许兵张志强刘晶罗伟吴非
Owner 中平神马江苏新材料科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com